Fetch user from different shard (without being in the same guild)

[sand tinsel]

I'm working on a notification function to send DM user . But I read some information online that using .broadcastEval() may result in multiple messages will be send if that user is currently in cache of multiple shards.

So in my current implementation, I'm using cron job running on shard manager to check when to send user a DM and picking random shard to send it like this:

Code in shard manager

            const totalShard = manager.totalShards;
            const rngShard = getRandomInt(totalShard);
            manager.broadcast({ name: 'dmUser', id: id, msg: msg, shard: rngShard });```

Code in client

process.on('message', async function(m) {
//...
if (m.name === 'dmUser') {
// Check if this shard is the one assigned to dm user
if (client.shard.ids[0] === Number(m.shard)) {
const user = await client.users.fetch(m.id);
if (!m.msg || m.msg === '') {
return;
}
await user.send(m.msg);
}
}
}```

but my bot is still in development and don't have enough user to spawn multiple shards yet, so I have no way to test if my shard can fetch and DM that user without being in the same guild as them

[little ginkgo]

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[chilly sedge]

i’m not a sharding expert, but bots cannot dm users if they do not share mutual servers with each other. you can fetch any user on discord regardless of whether they share servers with the bot, but not sending dms

anything further related to sharding is out of my scope of knowledge right now. someone else that has more experience will be able to answer further

[sand tinsel]

thanks for your answer, I also want to know that if I can DM user is not in the same guild with the shard (something like the guild that user currently in belong to shard 1 but I want to use shard 4 to DM that user)

fixed my question to clarify my intent

[haughty sparrow]

Yeah you dont need to DM a user from a specific shard